A non-chemical water treatment device for treating the open-loop side of recirculating cooling tower water has been researched and developed for 4 years in university research centers and private laboratories.  This paper reports performance data and describes mechanisms for the following functions: 1) the control of microbial populations to very low levels, independent of species or mutation, 2) the breakdown and removal of bio-film and scale encrustation, 3) the prevention of heat-exchanger fouling, 4) corrosion prevention on both local and uniform attack and 5) operation of cooling towers at very high cycles of concentration for water savings.

00-03: A Non-Chemical Water Treatment Device